"NOW PAY ATTENTION!:'the sexual orientation of a fetus may be determined by the release if hormones in utero after the genitals of the fetus are determined, and if mistimed, can affect the sexual orientation of the child.....'

"In other words....IT'S NOT 'GENETIC'?????????...."

It IS most certainly genetic. A combination of genes, possibly recessive, which sometimes express themselves, but not every time. The genetic combination is believed to be carried in the female line of the family, but generally does not affect them directly

There is general agreement among geneticists that sexual orientation IS genetic, but the genes do not always express themselves, which is the nature of recessive genes.

Basic Mendel.

Don Firth